2 years ago

Which equation represents this statement nine less than three times a number is 18

Mathematics

1 answer:

vitfil [10]2 years ago

5 0

(9x3)-9=18

Thisjj bf is the answer enjoy

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Solve. (x + 3)^1/2– 1 = x

Natali [406]

Answer:

x=1

Step-by-step explanation:

$(x + 3) ^{ \frac{1}{2} } - 1 = x \\ \sqrt{x + 3} - 1 = x \\ \sqrt{x + 3} = x + 1 \\ square \: both \: sides \\ x + 3 = {x}^{2} + 2x + 1 \\ {x}^{2} + 2x - x + 1 - 3 = 0 \\ {x}^{2} + x - 2 = 0 \\ x ^{2} + 2x - x - 2 = 0 \\ (x^{2} + 2x) - (x + 2) = 0 \\ x(x + 2) - 1( x + 2) = 0 \\ (x - 1)(x + 2) = 0 \\ x - 1 = 0 \\ x = 1 \\ \\ \\ x + 2 = 0 \\ x = - 2$

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AURORKA [14]

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What is the value of this expression: 2 + 42 - 6 x 25 + 3

Zigmanuir [339]

2+42 -6 * 25 +3

= 44 - (6)(25)+3

= 44-150+3

= -106+3

= -103

I hope that's help !

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dolphi86 [110]

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Hope you have a great Valentine's Day!!!

bagirrra123 [75]

Answer:

It is B. Commutative Property of Addition. I selected d from the other answer and it was wrong, just trust me it b. Commutative.

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